The trip is inspired by San Francisco’s 45-31 win over the Packers in January. Colin Kaepernick had the most rushing yards (181) by a quarterback in NFL history, the longest run (56) by a QB in postseason history and the 49ers had 579 yards, a single-game postseason franchise record.

So, yeah, after being taken to school, the Packers will go to school.

“Five-hundred seventy-nine, that’s a number that will stick in our focus as a defense throughout the offseason,” McCarthy said. “We’re studying the read option, the teams that are doing it in the NFL. We’re even going to the college ranks, we’ll have a couple college coaches come in, spend some time with our staff.

“Actually, our defensive staff is going to take a trip to Texas A&M. Kevin Sumlin is someone I have great respect for and with his ability to share from both the offensive side and the defensive side his experience in the read option. It’s something from an education, preparation standpoint that we will grow as a staff and be better prepared for in the future.”

In 2013, the Packers figure to face plenty of read option with dates against the 49ers, Redskins and Eagles, who are expected to employ the scheme under new coach Chip Kelly.

In January, the 49ers had 323 rushing yards, averaged 7.5 yards a carry and four rushing touchdowns against the Packers.

“San Francisco, they beat us twice last year,” McCarthy said. “You look at the difference in the first game and the second game, and obviously the glaring statistic and the information in the second game was obviously the production of their quarterback … San Francisco had a great year; like I said they beat us twice, and that’ll definitely be a focus of our offseason.”

Green Bay, of course, won’t be the only team dissecting the Pistol offense and the read option.

As 49ers offensive coordinator Greg Roman noted shortly after the Super Bowl, though, those teams may not see the exact same scheme in 2013. The 49ers will also study and evolve this offseason, Roman told Sports Illustrated’s Peter King.

“We’re going to do the same thing, too,” he said. “We won’t be the same either.”